Already got some good answers, but I'll just throw this in, as I am also running on a 5 x 5 base routine, slightly altered for personalized progression.
I do 2 moves for each muscle group, using a 5x5 scheme. Same move for the first 5 sets, same move for the second 5 sets. I plan on using the same moves for 2 full weeks, which is 4 workouts with each move, then will switch it up for 2 weeks, then revert back to the first set of moves.
Example, chest currently is 5x5 flat BB, then 5x5 incline DB press. After next week, I'll switch to 5x5 decline DB press and a mix of 2 sets pullovers into 3 sets wide flyes on a machine.
I also use a finisher for each muscle group, and that will also change. Currently doing a set of 20-25 reps @ 50-60% wide DB flyes to close out chest, that will change to a set of flat BB @ 50-60% pause/speed reps mix set.
Hope that's not too confusing...
Mt Snow, VT - May 5, 2012 - Completed!
...i remain, he who remains to be...